Mechanism for simultaneously operating two rock-shafts.



J. V. HENLEY.

MECHANISM FOR SIMULTANEOUSLY OPERATING TWO ROCK SHAFTS.

APPLICATION FILED APR..16. l9l5.

L l 3,639, Patented Jan. 23, 1917.

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JOSEPH V. HENLEY, OF ST. LOUIS, MISSOURI.

MECHANISM FOR SIMULTANEOUSLY OPERATING TWO ROCK-SHAFTS.

Original application filed November 28, 1913, Serial No. 803.479.

Specification of Letters Patent.

Patented Jan. 23, 1917.

Divided and this application filed April 16,

1915. Serial No. 21,682.

To all whom it may concern:

Be it known that I, Josnrrr V. HENLEY, a citizen of the United States, residing at the city of St. Louis, State of Missouri, have invented certain new and useful Improvements in Mechanism for Simultaneously Operating Two Rock-Shafts, (the present application being a division and continuation of that filed by me November 28, 1913, Se rial N 0. 803,479,) of which the following is a specification.

The present application is a division and continuation of my application 803,479, Nov. 28, 1913, on which patent numbered 1,148,898, and dated August 3, 1915, was granted to me, and this invention relates to improvements in adjustable mechanism for simultaneously operating two rock shafts.

The invention is designed primarily for use in connection with carburetors which are particularly adapted for use to control the supply of fuel and air to and mixing of same for internal combustion engines to insure the proper mixing of fuel and air and eflect the proper portioning of same for the requirements for all speeds and changes in temperature and altitude, and has for its object to provide a novel device for controlling through the rock shaft the relative po sition of the throttle and check valves provided in connection with the carbureter.

Further, the present invention consists of the novel features of construction and arrangement of parts hereinafter more fully described and pointed out in the claim.

In the accompanying drawings forming part of this specification, in which like numbers of reference denote like parts wherever they occur therein and wherever they occur in the drawings accompanying and forming part of the specification of the said application filed November 28, 1913, Serial No. 803,479, Figure 1 is a side elevation of a carburetor with the present invention attached thereto; Fig. 2 is a sectional view, on an enlarged scale, on the line 11-11, Fig. 1; and Fig. 3 is a sectional view, on an enlarged scale, on the line 12-12, Fig. 1.

1 is the casing or housing of a carburetor preferably formed with a cylindrical configuration, and has an intake pipe 2 extending outwardly from one side thereof and an outlet pipe 3 extending upwardly from the top of same, said outlet pipe bearing a flange 4, which is adapted to be secured to the manifold (not shown in the drawings).

he intake pipe 2 is adapted to be clamped by means of a bolt 15 and a pair of lugs 13 around an end of a pipe or tube 16 that may be connected with a suitable receptacle (not shown), which communicates with the at mosphere and has its interior heated by the exhaust pipe (not shown) or other suitable means, so that heated air will be drawn into the mixing chamber 7 for the purpose hereinafter described. The parts just mentioned being old and well known further description is deemed unnecessary.

A butterfly check-valve 19, which is located in the intake pipe 2 to control the pas sage of air into the mixing chamber 7, is secured to a rod 21 that extends transversely through said intake pipe and is revolubly supported in openings in a pair of oppositely-disposed lugs 23 borne thereby. An arm 24 is secured to one end of the rod 21 and has its forked free end 26 engaged with a block 27. An adjustment screw 29, provided with a knurled head 30, is revolubly supported in an opening in the fixed end of the arm 24, and extends through a screwthreaded opening in the bloox 27 and not only supports the latter between the prongs 26, but, also, affords a means for adjusting the position of same with respect to the rod 21, thereby to efiect either an increased or a decreased movement of the valve 19. i A member 32 which is revolubly supported on a lateral projection 33 borne by the block 27, is provided with a screw-threaded opening for the reception of one end of a connecting rod 35. The other end of the rod 35 fits in a screw-threaded opening in a member 36, which is revolubly supported on a lateral projection 37 borne by the free end of an arm 38, said arm being secured to one end of a rod 40 which is revolubly supported in openings in a pair of oppositely-disposed lugs 42 borne by the outlet pipe 3 of the casing 1 and extends transversely through said outlet pipe. A butterfly throttle-valve 43 is secured to the rod 40 and is located in the outlet pipe 3 to control the passage of the mixture of fuel and air from the mixing chamber into the manifold, (neither the mixing chamber nor the manifold being shown). It will be observed that one end of the connecting rod 35 bears a right-hand screw-thread and the other end bears a left-hand screw-thread, so that when said rod is turned the free ends of the arms 24 and 38 will be moved either closer together or farther apart, with the result of adjusting the relative positions of the checkvalve 19 and the throttle-valve 43, an angular enlargement 46 on the middle portion of the rod 35 affording a means for turning the latter by hand. A lever (not shown), which is secured to the opposite end of the rod 40, has the usual connection with the throttle lever (not shown in the drawings) so that the throttle-valve 4-3 and checkvalve 19 can be controlled from the drivers seat. An adjustable stop-screw 49 which fits in a screw-threaded opening in a lug 50 borne by the outlet pipe 3, stands in position to engage a lug 51 borne by the arm 38, so that when the rod 40 is rocked in the direction to move the throttle-valve l3 toward a closed position said stop-screw will limit such movement so as to prevent complete closing of said throttle-valve, thereby holdingthe latter open sufficiently to allow the engine to run at low speed.

During the suction stroke of each piston, air is drawn through the intake pipe 2, and into the mixing chamber, the amount and velocity of the air that passes into the mixing chamber varying according to the set of the check-valve 19. Any desired vacuum in the mixing chamber may be provided in order to obtain the proper mixture for all speeds and changes in temperature and altitude, thus permitting the use of either a dense or slow burning fuel, such as kerosene or the like, or a more volatile fuel, such as gasolene or the like, and effecting proper atomization of the fuel.

In order to adjust the carbureter for starting the engine at low speed, the throttlevalve 43 is moved to nearly a closed position by the throttle lever at the steering post, then the check-valve 19 is adjusted by turning the connecting-rod 35 in the proper di rection to move the check-valve to a more closed position than the throttle-valve, so as to establish enough vacuum in the mixing chamber to lift the correct amount of fuel from the fuel atomizer (not shown) into the mixing chamber to make the correct mixture for low speed.

As a variable change in the density of the mixture is required for efliciency between low speed and high speed, or, in other words,

from nearly closed position of the throttlevalve 48 to the fully opened position of same, the stroke arm of the check-valve 19 is adjusted to the proper length by means of the adjustment screw 29 to maintain the movement of the check-valve with respect to the throttle-valve so as to maintain the proper control of the vacuum in the mixing chamber for all speeds of the engine.

While I have illustrated my invention as applied to a carburetor it is to be understood that I do not limit myself to such use, as it is obvious that it may be used to advantage in other devices where the simultaneous operation of two rock shafts is desired.

I claim:

The combination with a rock shaft of a second rock shaft, a crank on said second rock shaft, a block revolubly connected with said crank and provided with a screwthreaded opening therethrough, an arm having a hub at one end keyed to the first rock shaft and terminating at its other end in a fork, the tines of which are separated at their outer ends, said arm having an interiorly screw -threaded opening therethrough extending in the direction of the forked end, a comparatively long adjusting screw mounted in the said opening and extending between, and in the direction of, the tines of the fork, a block having a circumferential groove adapted to receive the tines of the forked end, said block having an interiorly screw -threaded opening therethrough adapted to receive the outer end of the said adjusting screw, a stub journal extending from one side of said block, a member pivotally mounted on said journal and provided with an interiorly screw-threaded opening therethrough, a connecting rod each end of which is provided with exterior screw-threads, which screw-threaded ends are adjustably positioned, respectively, in the block on the crank of the outlet valve and in the member which is j ournaled on the said slotted block, and an enlargement on the connecting rod whereby it may be readily revolved for the purposes of adjustment.

In testimony whereof I hereunto aflix my signature in the presence of two witnesses.

JOSEPH V. HENLEY.

Witnesses:

NANCY C. THOMAS, WALTER C. GUELs.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G." 

